{"paper":{"title":"Euclid preparation: IX. EuclidEmulator2 -- Power spectrum emulation with massive neutrinos and self-consistent dark energy perturbations","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Balaguera-Antol\\'inez, A. Biviano, A. Cappi, A. Da Silva, A.G. S\\'anchez, A.N. Taylor, A. Renzi, A. Schneider, A. Secroun, A. Zacchei, B. Garilli, B. Kubik, B. Metcalf, B. Morin, C.A.J. Duncan, C. Baccigalupi, C. Bodendorf, C. Burigana, C. Carbone, C. C. Kirkpatrick, C. Colodro-Conde, C. Giocoli, C.J. Conselice, C. Neissner, C. Padilla, C.S. Carvalho, C. Sirignano, D. Di Ferdinando, D. Maino, D. Potter, D. Sapone, E. Bozzo, E. Branchini, E. Franceschi, E. Keihanen, E. Medinaceli, E. Munari, E. Romelli, Euclid Collaboration: M. Knabenhans, E. Zucca, F. Finelli, F. Grupp, F. Hormuth, F. Marulli, F. Pasian, F. Raison, F. Sureau, F. Torradeflot, G. Castignani, G. Congedo, G. Fabbian, G. Gozaliasl, G. Meylan, G. Polenta, G. Riccio, G. Sirri, H. Israel, H. Kurki-Suonio, H.M. Courtois, I. Lloro, I. Tereno, J. Carretero, J. Coupon, J. Dakin, J. Graci\\'a-Carpio, J. Rhodes, J. Stadel, J. Valiviita, K. Jahnke, K. Markovic, L. Conversi, L. Corcione, L. Guzzo, L. Moscardini, L. Patrizii, L. Stanco, L. Valenziano, L. Whittaker, M. Baldi, M. Brescia, M. Castellano, M. Frailis, M. Kunz, M. Meneghetti, M. Moresco, M. Poncet, M. Roncarelli, M. Tenti, M. Viel, N. Auricchio, N. Martinet, N. Mauri, N. Welikala, O. Marggraf, P. Battaglia, P. B. Lilje, P.G. Ferreira, P. Schneider, P. Tallada Cresp\\'i, R. Bender, R. Cabanac, R. Casas, R. Cledassou, R. Massey, R. Saglia, R. Teyssier, R. Toledo-Moreo, S. Andreon, S. Bardelli, S. Camera, S. Casas, S. Cavuoti, S. de la Torre, S. Farrens, S. Galeotta, S. Hannestad, S. Kermiche, S. Ligori, S. Marelli, S. Maurogordato, S.M. Niemi, S. Paltani, S. Pires, S. Serrano, T. Tram, T. Vassallo, V. Capobianco, V. Pettorino, V. Scottez, W. Holmes, X. Dupac, Y. Copin, Y. Wang","submitted_at":"2020-10-21T19:59:58Z","abstract_excerpt":"We present a new, updated version of the EuclidEmulator (called EuclidEmulator2), a fast and accurate predictor for the nonlinear correction of the matter power spectrum. Percent-level accurate emulation is now supported in the eight-dimensional parameter space of $w_0w_a$CDM$+\\sum m_\\nu$models between redshift $z=0$ and $z=3$ for spatial scales within the range 0.01 $h$/Mpc $\\leq k \\leq$ 10 $h$/Mpc. In order to achieve this level of accuracy, we have had to improve the quality of the underlying N-body simulations used as training data: (1) we use self-consistent linear evolution of non-dark m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.11288","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2010.11288/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}